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package hanuma;

import java.util.*;

/**
 *
 * @author niyaz
 */
public class PersistentInMemory implements Persistent {

    public  Set<String> set = new HashSet<String>();
    public void put(String user){
        set.add(user);
    }
    public boolean contains(String user){
        return set.contains(user);
    }
    public int size(){
        return set.size();
    }
    public UserList getUserList(){
        return null;
    }

}
